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Diagnostics
Energy calculation
Type of connection and load
Selection via dip-switches
Power supply
Signals
Protection
Work/storage temperature
Relative humidity
Ambient conditions for use
Installation
Installation requirements
48
FUNCTION
- Timed Soft-Start firing ramp, with or without peak current
control
- Soft-Start firing ramp, specific for infrared lamps
- Timed shut-off ramp
- Limitation of RMS current in load
- 0-90° Delay-Triggering for firing inductive loads in ZC and BF
mode
- SCR in short circuit (presence of current with OFF control)
- No linear voltage
- Fan supply power missing
- No current due to open SCR/interrupted load
• Overheat alarm (of power modules, of clamps for power
cables, of fuse)
Current reading
• HB Alarm: Interrupted or partially interrupted load
• Calibration procedure using automatic threshold
HB alarm from the value of the load current
• Alarm load short circuit or overload
Voltage reading
• Input phase unbalanced
• Wrong phase rotation in three-phase load configuration
Total energy value supplied to load with local display by terminal
and remote acquisition from fieldbus. Counters can be reset.
- with one Master unit (GFW-1PH):
1 single-phase load
- with one Master units and one Expansion (GFW-2PH):
2 single-phase loads
in ZC and BF trigger mode only:
1 phase load closed delta controlled on two phases
1 phase load star without neutral controlled on two phases
- with one Maste units and two Expansions (GFW-3PH):
3 single-phase loads
3 independent single-phase loads open delta
1 phase load open delta
1 phase load closed delta
1 phase load star with neutral
1 phase load star without neutral
GENERAL DATA
GFW 1PH-400/500/600A: 24Vdc +/- 10% max 38W
GFW 2PH-400/500/600A: 24Vdc +/- 10% max 66W
GFW 3PH-400/500/600A: 24Vdc +/- 10% max 94W
Eight LEDs:
RN (Green) run state of CPU
ER (Red) error signal
DI1, DI2, (Yellow) state of digital inputs INDIG1, INDIG2
O1,O2,O3 (Yellow) state of power control
BT (Yellow) state key HB
IP20
0...50°C (refer to dissipation curves) / -20..+85°C
20...85% RH non-condensing
indoor use, altitude up to 2000m
panel with screws
Installation category II, pollution level 2, complete isolation and
shielding of all control lines
Max. temperature of air surrounding device 50°C for temperature
>50°C refer at derating curves - Device type: "UL Open Type"
80999D_MHW_GFW 400-600A_07-2020_ENG
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